I'm sure this will come as no suprise to anyone. My OTP is Danny/Flack. I just love them together. They are great friends, have great chemistry, and are two of the hottest detectives ever. I just wanna run away with either one or both of them.
I also ship:
Flack/Aiden - This was my first ship for NY. There are so many fanfics about them. I think they made a lovely couple.
Mac/Danny/Flack - This seemed a little strange at first but I really enjoy reading the fics.
Danny/Maka - Can you say sizzle. She so wanted Danny. Too bad she left the show. I would have loved to see something develop between them.
Danny/Angell - I like these two together. Loved them in People With Money. I would like to see more interaction between them.
Hammerback/Stella - This is just too funny. Anyone written any fanfic about them? I'd love to see them together.
Danny/Flack/Aiden - totally hot. I'm not much into sharing DF with anybody but I'd let her slide
Mac/Danny/Flack/Hawkes/Adam - This could be very interesting. Five hot guys all together. Can anybody say "cold shower"?
Flack/Stella - I read a great fic on this pairing and I gotta say that I really liked it. Flack was all man and Stella was all Stella.
As for how I ship, I discuss, read, and semi-write Danny/Flack. I'd rather just discuss and read them though. As for the rest of the ships, I discuss some of them and some are purely fanfic only.